RT-7200 Auto Hematology Analyzer User’s Manual
Fig.10-2 Solenoid valve test
The instrument has 10 solenoid valves totally, you can click corresponding button to test, or
click “All solenoid valve” button to test all solenoid valves at the same time. If valves are
normal, the movement shall be smooth and regular.
Click “Exit” button, return to mechanical test screen.
Function of each solenoid valve is as follows:
Solenoid valve 1: to control lyse solution dispensing.
Solenoid valve 2: to release positive pressure and negative pressure of pressure syringe.
Solenoid valve 3: to control WBC chamber cleanser adding during rinsing.
Solenoid valve 4: to drain pressure syringe.
Solenoid valve 5: to provide negative pressure needed by WBC and RBC chambers.
Solenoid valve 6: to control RBC chamber diluent adding during rinsing.
Solenoid valve 7: to control diluent and air aspiration in sampling needle flushing unit.
Solenoid valve 8: to control diluent in sampling needle unit.
Solenoid valve 9: to control diluent dispensing.
Solenoid valve 10: to control chamber draining.
10.2.10 Debug
For the engineer to test and debug the instrument.
10.2.11 Engineering
For the engineer to sets up system parameters.
Warning: Engineers not trained by Rayto Company are refrained from
using this function, otherwise test result accuracy will be
affected, or even normal test can not be performed.
10.2.12 Machine reset
When mechanical component is out of step, you can restore original status with mechanical
reset.
10.2.13 Stop use
If the instrument will not be used for more than two weeks or to be packed for transportation,
please conduct in following steps:
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